Question

The energy of the transition state of an enzymatic reaction is _____

(a) higher than the energy of the product but lesser than that of the substrate

(b) lower than the energy of the product

(c) equal to the energy of the substrate

(d) higher than the energies of both the substrate and the product

The question was asked in an interview.

My question is taken from Biomolecules in section Biomolecules of Biology – Class 11

Answer 1

The correct answer is (d) higher than the energies of both the substrate and the product

To explain: The transition state occurs during an enzymatic reaction when the substrate binds to the enzyme molecule in order to be converted into a product. The energy of this state is higher than that of the substrate and the product.